Observations of pneumonia in slaughtered pigs according to season

Lee, Seok-kyu; Han, Jeong-hee; Jeong, Hyun-kyu

Korean Journal of Veterinary Research 1999;39(1):85-89.

Seok-kyu Lee¹, Jeong-hee Han¹, Hyun-kyu Jeong²

¹Department of Veterinary Medicine, Kangwon National University
²Dodram Pig Farmers Cooperation

계절에 따른 출하돈에서의 폐렴관찰

이석규¹, 한정희¹, 정현규²

¹강원대학교 수의학과
²도드람 양돈축산업협동조합

Abstract

From 2,373 slaughtered pigs examined, 1,899 of them had visible evidence of pulmonary lesion. The lungs with pulmonary lesion were examined by grossly, histopathological technique to investigate the prevalence according to season, severity of pulmonary lesion, types of the pneumonia and relationship between rearing management and prevalence of pulmonary lesion. The results were as follows : 1. Prevalence of pneumonia according to season was 72.3% to 85.9% and the highest prevalence was in winter. 2. In the severity of pulmonary lesion, rates mild, moderate and severe lesions were 38.3%, 47.0% and 14.7%, respectively. Prevalence of mild lesion was the highest in autumn. Prevalence of moderate and severe lesions was the highest in winter. 3. In the type of pneumonia, rates of interstitial pneumonia and bronchopneumonia fibrinous pneumonia were 23.6%, 13.0%, and 3.4%, respectively. Prevalence of interstitial pneumonia was high in spring and autumn while that of broncho-pneumonia and fibrinous pneumonia was high in winter and summer, respectively. 4. In relationship of pulmonary lesions according to severity of pulmonary lesion and types of pneumonia, similarity was observed in prevalence of mild lesion and bronchopneumonia.

Key Words: season, interstitial pneumonia, bronchopneumonia, fibrinous pneumonia